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180342472 = 2322542809
BaseRepresentation
bin10101011111111…
…00111011001000
3110120100100100211
422233330323020
5332131424342
625521210504
74316612542
oct1257747310
9416310324
10180342472
1192886a72
1250490a34
132b493a2b
1419d46692
1510c74c17
hexabfcec8

180342472 has 8 divisors (see below), whose sum is σ = 338142150. Its totient is φ = 90171232.

The previous prime is 180342467. The next prime is 180342499. The reversal of 180342472 is 274243081.

It can be written as a sum of positive squares in only one way, i.e., 147233956 + 33108516 = 12134^2 + 5754^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11271397 + ... + 11271412.

Almost surely, 2180342472 is an apocalyptic number.

It is an amenable number.

180342472 is a deficient number, since it is larger than the sum of its proper divisors (157799678).

180342472 is a wasteful number, since it uses less digits than its factorization.

180342472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22542815 (or 22542811 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 180342472 is about 13429.1649777639. The cubic root of 180342472 is about 564.9794776789.

The spelling of 180342472 in words is "one hundred eighty million, three hundred forty-two thousand, four hundred seventy-two".

Divisors: 1 2 4 8 22542809 45085618 90171236 180342472